5. The ages of husbands and wives in a community were found to have a correlation coefficient equal to +0.8; the average of husbandsí ages was 25 years and that of wivesí ages 22 years; their standard deviations were respectively 4 and 5 years. Find the two lines of regression and from the lines ,measure
a. The expected age of husband when wifeís age is 12 years
b. The expected age of wife when husbandís age is 33 years

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